Filter



March 11, 1930. v G, L, WALSH 1,750,073

FILTER Filed March 15, 1929 sheets-sheet 1 v .nllilL/l//lllllllllllllllllllllllll/llllllllllLllI/ 1 77 :NvENToRATTORNEY G. L. NALE-5Hv FILTER -Filed March 15 '1929 3 Sheets-Sheet 2lvENToR 'eore L Wals/ BY ATTORNEY March 11, 1930.

March. 11, 1930. i G. L. WALSH l 1,750,073

FILTER 'Filed Maren 15, 1929 s sheets-sheep S INVENTOR George L. Wals/1ATTORNEY Patented Mar. 11, 193e STATES PATENTE oFFIcE oEoaaEr.. wanen,or JERSEY crrY, NEW JERSEY, n'sSIeNoE To JOSEPH u. EEc'roE, or JERSEYcrrY, NEW JEnsEY E11-.TER

Application led March 15,` 1929. Serial Ii'o. 347,285.

. This invention relates to a filter.

'The object of the invention is the production of a lter, by means ofwhich diierent liquids can be easily and` quickly filtered. a The secondobect of the invention is the production of a hlter ywith which thefiltering material thereof can be compressed to various degrees, toadapt it for filtering various iiuids. The third .object of theinvention is 1o the production of a filter, by means of which the luidoperated upon can be heated or cooled during the operation of filtering.The 'fourth object of the invention comprises the steps to uniformlycompress the filtering matenal throughout all portions thereof in afilter.

i In the accompanying drawings Fig. 1

represents an axial section of an exem lifica tion, with an elementomitted, of t e im- .proved filter as on the linel 1, of Fig. 2; Fi

2 shows a top lan view ci the filter part y broken away; Aig. 3 is asection of.v Fig. 1 on the line 3, 3; Fig. 4l indicates an enlarged sec--tion of Fi 1 on the line 4, 4; Fig. 5 represents an e evation of theimproved filter in artial axial section ready l-for operation; ig. 6'shows a view similar. to Fig. 5 with its plunger disc loweredindicating the second step 1n the operation of the filter; Fig. 7indicates a view similar to-Fi 6 with'its lunger disc lin its initial orraise position in 'eating the third step in theoperation of the lter;Fig. 8 represents a sectional elevation of the filter with its plungerdisc in its raised position and an element added indicating the fourthstep of the operation of the filter; Fig.l

9 shows-a sectional view of the lter similar to Fig. '8 with its discplunger in a lowered position indicating the fifth step ofthe operationof the filter; Fig. 10 indicates an enlarged axial section ofa'fragmentary portion of the lter indicating two positions of one of itselements; Fig. .11 represents a section of Fig. 5 on the line 11, 11,;Fig. 12 shows a section of Fig. 1 on the line 12, 12; Fig. 13 representsa `fragmentary top plan view o f the disc plunger. of theilter; Fig.14'ind1- cates an enlarged section of Fig. 1 on the linel 5 14, 14 andFig. 15 represents anelevation on 'and the bottom head 55 wit boss 56.The outlet pipe 43 su ports said' a reduced scale of the lower portionof the :filter with a modication.

4The filter in this instance comprises an outer shell 20 having theboss'21. The said shell 2O may be made of any material suitable for thematerial operated upon, but is preferablymade of co per, glass lined onits outer and linner sur aces. The angle shaped flange 22 havin theopenings 22 is fastened to the upperY en of said shell. A dished bottom23 having the flange 24 and the boss 25,

` is fastenedv to the lower end of the shell 20. An angleI sha ed ange26 is fastened to the flange 24.' upporting handles 27 extend from theshell 20.

An inlet pi e 30 is connected to the boss 21 and prefera ly in threadedengagement therewith. A valve 31 Aand sight glass 32 are connected tothe pi e 30.`

A perforated inner ltering shell 35 having the perforations 36 islocated within the shell 20. An annular sleeve 39 is fastened to theupper end of the shell 35 and a cupshaped bottom 40 is fastened to thelower end of the shell 35. An outlet pipe 43 threaded on its outersurface extends through an opening 44 in the bottom 40. A pair of jamnuts 45, 46 are in threaded en agement with the ipe 43. A packing 47 arsbetween the ottom 40 and the nut 46, to form a tight joint between thebottom 40 and the pipe 43. A bushing 48 exteriorly and interiorlythreaded is in threaded engagement with the boss 25 and with the outletpi e 43. Packing 49 is interposed between the oss'25 and the bushing 48..e

A perforated discharge hood 50 comprises the cylindrical 4shell 51 withthe erforations 52, the top head 5,3, with the er orations 54 thethreaded discharge hood and is 1n threa ed engagement with the boss 56.A washer or packing 57 bears against the boss 56 and a `nut 58 on -theoutlet pipe 43. To the lower end of the pipe 43 is connected' the piping60, that has connected therewith the valve 61 andthe sight glass 62. v 4In the annular Aspare 67 between the outlet shell 20 and the inneriilteringshell 35'is lol cated the helicalcoil 68. The upper end 69 ofsaid coil extends through the shell and has connected thereto the 1nletvalve 70 with i the inlet pipin 71. The lower end 72 of the 76 1sconnected to t e upper portion ofthe shell 2O and pi 77 having the valve78 is connected to the ttom 23. A detachable cover for the filter isdesi ated in its entiret by the numeral 80. e said cover 80 has ormedtherewith the horizontal Bange 81 and the depending annular Bange 82.Open ings 83 are formed in the Bange 81 and ribs 84 are forme'd withsaid cover 80. Handles 85 are fastened and extend from the Bange 81.Swing bolts 86 hinged from the Bange 22 extend throu h opemngs 22 and"83andv are provided wit the wing nuts 87. An annular packing 88 isinterposed between the Bange 81 and the upper face of the Bange 22.

` Legs 89 have their upper ends fastened to the The 'said gagement withthe boss 102 and has fastened lower rtion of the shell 20, an'd areshown with t e feet 90.

To the lower face of the horizontal leg of the Bange 22 is fastened thebracket having the. lower Bange 91, the vertical member 92 and the upperBange 93 with the opening 94.

A movable yoke (see Figs. 5 to 11 inclusive) is desi ated in its entiretrb the numeral 95. T e yoke comprises vt e ower annular Bange 96 thathas formed therewith the heel 97 havin the extension 98. Openings 99 areforme in the Bange 96. A bolt 100 hinges the said extension 98 to theBange 93.

oke 95 has formed therewith four legs 101 that extend upward from theBange 96 and terminate in the threaded boss 102.

An operating screw 103 is in threaded ento its upper end the operatingwheel 104. To the lower end of the screwv 103 is rotatably connected thedisc plunger yoke designated in its entirety by the numeral 105. Theyoke 105 comprises the three legs 106 which at their upper endsterminate in the boss 107. A collar 107l is fastened to the lower end ofthe screw 103, and a p1ate107 is fastened to the boss 107 and bears onthe collar 107". At the lower ends of the legs 106 are formed the feet108. A disc plunger 110 having the axial opening 111 is fastened to thefeet 108. The diameter of the disc plunger 110 is such that it caneasily enter the ilterin 35. A detachable cover 115 is provi ed for theopening 111. From the upper face of the cover 115 extend lugs 116, whichdetachably carr the clam ing bars' 117 which bear against-t e upper ace'of the disc lunger 110, when the cover 115 is locked in p ace.

Referring to Fig. 15, which indicates the Bltervmounted on atruck,1the,outer shell is again indicated at 20. The outlet pipe isagain shown at 60. The legs 89 have their upper ends fastened to theshell 20 and have formed'therewith the feet 90 as already 'descnbed. Atruck is indicated with the platform 118 having the central opening 119.The opening 119 allows a receptacle to be srltced under the iilter forthe purpose of imng the same. Journal boxes 120 have journaled thereinaxles 121 for the wheels 122. A handle 123 is `pivoted to the platform118.

To use the filter they cover 80 is removed an'd the yoke 95 with itsappurtenances is swung on the bolt 100 to clear the upper end of theshell 35 as indicated in Fig. 10 in dotted lines. The shell 35 is thenfilled with the filtering material 125, the nature of which depends u nthe nature of the Buid to be filtered. he filtering material may consistof a. mixture of cotton, paper pulp, &c. German masse and the like orother suitable material. The operator next compresses the lteringmaterial to a degree compatible to the nature ofthe Buid to be operatedupon. This compression is obtained as follows,that is to say, theoperating wheel 104 is turned to lower the disc plunger 110, devoid ofits cover 115 to com ress the filtering material 125 as indicated 1nFig. 6.l The" operating 'hand wheel 104 is then turned in the opposite-direction to raise the disc plunger 110 as indicated in Fig. 7. By thismeans a core 126 ofthe material is obtained, which is not compressed..Next an additional amount of the material 125 is inserted into the shell35 and the material 125 is again compressed as just described.- Thesesteps are repeated until the shell is filled with the annulus of comressed material 125 having the core 126 of t e material which is notcompressed. By this means the material 125 is compressed in the shell 35to its bottom 40 and around the hood 50, having the uncom ressed core126. Next the cover 115 is attac ed to the plunger 110 after additionalBltering material has been added and the disc plunger with its cover islowered'to compress the additional mateial `125 and the core 126. Thesesteps are repeated until the shell 35 is completely filled with thefiltering material and extends somewhat above the top edge of the shell35. The perator next swingsthe 'yoke 95 from the opening in the shell 35.las indicated in dotted lines in Fig. 10 and' the cover 80 is located fin placeas indicated in Fig. 1. l

The fluid to be filtered is next introduced into the Blter by openingthe valve 31 of the piping 30 which latter leads from a reservoir, notshown, of the Buid to be filtered. The said Buid then Bows into thespace 67 between the shells 20 and 35, and next Bowsl into the interiorof the shell 35 through its perforations 36 and is filtered by thefiltering material. The filtered Buid then Bows through the erforations52 and 54 of the discharge hoo 50 and enters the outlet pipe 43, andfrom the 13o much as possible of the fluid operated upon to escape bywayof the piping 60. The operator may then remove tl ie cover 80 and againcause the disc plunger 110 with its cover 115 to descend to force aniltering material t erefrom to be discharged by way of the piping 60..During the opera;

tion of the lter a hot iuid, steam, or a cold liuid, like cooled brinemay be circulated through the coil 68 by opening the valves 70 and 7 3'.After the operation of ltering is iinished the filtering material may becleaned by forcing a cleaning fluid through the s ace. 67 and the otherappurtenances of the ter, by opening the valve 7 6 of the piping 75 andthe valve 78 of the piping 77.

The filter vwith the truck having the platform 118 may beused when it is-desired to .move the filter to different locations.

The shell 35 may bemade of coppertinned.

Various modifications may be made in the invention and the presentexemplication is to be taken as illustrative and not limitative thereof.

Having described my invention what I de-Y sire to secure by LettersPatent and claim is: 1. In a'iilter the combination of a shell for altering-material, a cover detachabl connected to said shell, means toinsert a uid to be filtered in the shell, a yoke hinged over the shell,a screw in threaded engagement with said yoke, a yoke in rotativeengagement with the lower end of the screw, a disc plunger havu inganpopening connected to the lower end of the latter yoke, a coverdetachably connected to said disc plunger under the o ning there'- in, aperforated discharge -hoo within said shell of a diameter smaller thanthe diameter of the opening in said disc plunger and a pipe remainingfluid in the ably connected to said disc plunger 4below the openingtherein, a perforated discharge hood within said shell of a diametersmaller than the diameter of the opening in said disc plunger and a pipeextending from said discharge hood through said shell.

Signed at the borough of Manhattan city of New York, in the county ofNew York and State of New York, this 12th day of March,

` GEORGE L. WALSH.

2. In a filter the combination of a shell, an

angle sha ed flange fastened to the upper end of the she l, a cover forsaid shell detachably connected to said flange, means to insert a fluidto be filtered .into said shell; a bracketJ having a lower ange, avertical member and an upper iiange; said lower flange fastened te saidangle flange at the upper end 'of the shell, a yokehaving formedtherewith a lower annular iiange, a heelformed with said flange,

an extension formed-with said heel, said ex tension. hinged to the upperflange of said bracket, a screw vinv threaded engagementl with saidyoke, a second yoke rotatively connected to the lower end of the screw,a disc connected to, the

ower end of the secondV yo e, a cover detachyas

